Perry



Patented May 24,

UNITED, STA

v I ALIFORNIA; ELSI E W. PERRY SYEC EIA L ADMINISTEA- JAMES S. PERRY, DECEASED. v

JAMES S. PERRY, OF COVINA, C

No Drawing.

Es PATE T OFFICE.

METHOD or rnnn TREATMENT.

This invention relates to tree treatment and more particularly to that form adapted to cure certain dis- Psorosis causes and if not stopped will of tree found in trees of the psorosis or scaly bark the bark to spread-all over the bark and kill the tree.

Citrus trees, such as orange trees, which have matured, are valuable, being worth as high as live hundred cause of this fact and likewise dollars apiece, and bebecause of the number of years that it requires to bring a tree to a matured fruit, it becomes necessary cltrus trees regularly for psorosis, as well as so that it bears toclosely inspect state other diseases and conditions.

Just what causes ps orosis is not generally known, but it is believed to be caused by some animal organism which affects the bark very much the eczema condition of the skin affects a human being.

The invention has for an object the provision of a method of curing a tree of psorosis and within a minimum of time from the time the disease is first discovered.

otherobject is the provision of a method of treating diseased trees and cient, inexpensive, out quickly and which which is highly ethwhich may be carried when once carrled out or performed will not require a great deal of further attention.

lVhereas certain methods now in use for treatment of psorosis for the tree to heal,

only requires a fewdays,

than twenty-one, for psorosis to be complet In practicing requires many months the present invention usually'notmore a given condition of ely cured.

the invention and assuming that some variety of tree of the citrus family, such as an orange fected with psoros1s,I

first examine the dis eased area of the tree and then scrape the diseased bark enough to expose likewise so as portion to view,

the diseased to be able to discover the extent of the disease, that is,

the amount of spread of such disease.

then cut around a given down to the cambium and strip the bark within the cut area from the tree. this operation I examine inches outward from t area of the bark After the, bark for several he cut area to discover diseased bark down i usually tree, has become in-.

7 Application filed November 10, 1925. Serial No. 68,218.

whether or not the bark is diseased further, and if 1tis, I make further cuts so as to remove all diseased portions of the bark. The

appearance of the tree after the operation is performed shows a cut area in the tree from wise to keep the cambium in a moist condition, I immediately spray the treated area with some disinfectant, and I have found that corrosive sublimate in a solution of Water, say, 1 1000 part of the corrosive sublimate to water. may be used. Other disinfectants may be efiiciently employed as long as they are not of great strength, as the disin fectant must not unduly burn the surface of the cambium. WVhile' the cambium is in a moist condition I- wrap loosely around the tree and over the wound, paper such as newspaper, wax paper, cloth or the like. It is preferable to keep the paper or cloth out of direct contact with the cambium. The paper or cloth apparently protects the cambium and does not allow the same to dry out rapidly a nd likewise protects the cut away area from direct contact with sunlightand air, as well as any disease germs that may be in the air. I am aware that prior investigators have attempted to treat psorosis by removing the to the cambium and then a plying a wax directly to the cambium. lfbwever', the resultant new bark does not cover the cut-away area, the bark only growing in spots. With my method of treating psorosis I have found that the bark grows uniformly and completely covers the cambium and that new bark is well grown within twenty-one days.

The invention is 7 also applicable to the treatment of a disease known as shell hark aflecting'lemon trees by employing the same sequence of'steps as above outlined. I do not wish to confine this invention to the treatment of citrus trees alone, as the inven- I tion can be applied to any tree suffering from psorosis or kindred or like diseases.

It 1s obvious that various minor changes be made in carrying out the invention,

without departing from the true spirit of the invention.

Having thus disclosed my invention, I claim and desire 'to secure by Letters Patent:

A method of treating diseased bark con- 5 ditions in trees which consists in first removmg the diseased area of the bark down to the cainbium, then applying a {18111116161211 solution to the exposed cambnun, then placing a cover about and spaced from the can1- biuin While in a moist condition, and finally 10 leaving the covering in position until new bark has been grown.

In testimony whereof, I have name to this specification.

J AMES S. PERRY.

signed niy 

